短文改错（共10小题；每小题1分，满分10分）
此题要求改正所给短文的错误。对标有题号的每一行作出判断：如无错误，在该行右边横线上划一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：
该行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。
该行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。
该行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
Dear Helen,
Thank you so much for your party at Christmas Eve．All    76．__________
of them enjoyed it very much．We liked the dishes you had           77．__________
cooked but we were happy to learn the English songs you taught        78．__________
us．We hope you’ll teach us a lot many songs in the future．         79．__________
We’re leaving from our hometowns to spend the winter           80．__________
vacations．It seems that many of us are homesick after            81．__________
being away from home for such a longtime．What are your             82．__________
plans? Will you join in the tourist group organized by our school?        83．__________
We are busy prepare for our trips．Please excuse us              84．__________
for not able to say goodbye to you．            85．__________
We hope you’ll have a good time．
Yours,
Xiao Hua